Document Type
Article
Publication Date
7-18-2007
Publication Title
Physical Review B - Condensed Matter and Materials Physics
Department
Department of Physics and Astronomy
Abstract
We provide a quantum analysis of a dc SQUID mechanical displacement detector within the subcritical Josephson current regime. A segment of the SQUID loop forms the mechanical resonator and motion of the latter is transduced inductively through changes in the flux threading the loop. Expressions are derived for the detector signal response and noise, which are used to evaluate the position and force detection sensitivity. We also investigate cooling of the mechanical resonator due to detector back reaction.
DOI
10.1103/PhysRevB.76.014511
Dartmouth Digital Commons Citation
Blencowe, M. P. and Buks, E., "Quantum Analysis of a Linear dc SQUID Mechanical Displacement Detector" (2007). Dartmouth Scholarship. 1939.
https://digitalcommons.dartmouth.edu/facoa/1939
